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Viktor
Dronov, head of mobile products at Kaspersky Labs, said that free
applications are very beneficial because they paradoxically increase the
income of their producers. They are downloaded by a large group of
people, introducing their producers to a new audience for its paid
products. .

The trial version of Kaspersky Mobile Security will scan a smartphone
for viruses, but actually using the virus protection service will cost a
user 150 rubles ($5).

The Dr. Web company, one of Kaspersky's competitors, first
introduced a free version of its anti-virus program for Android in
2010, said its spokesperson Kirill Leonov. The free version allows users
to see if it will be useful for them.
"Many of our users buy the full version afterwards," Leonov said.

According to the 2012 Cisco annual report on information security,
there has been a 577 percent increase in Android devices affected by
malware in the past year. Kaspersky Lab reserach says that more than 99
percent of all dangerous software affect Android gadgets and the amount
of new viruses is steadily growing every year.